Centrifuge



FIG. 1 is a front right perspective view of a centrifuge showing our new design;

FIG. 2 is a front right perspective view of a second embodiment of a centrifuge showing our new design;

FIG. 3 is a left rear perspective view of FIG. 1;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a right side elevational view thereof, the left side elevational view being identical thereto;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a perspective view thereof, with the cover in open position. 

The ornamental design for a centrifuge, as shown and described. 